Assertion(A): Ethers are relatively less reactive than alcohols Reason(R): Ethers do not have active hydrogen at

1.  Both A and R are true and R is correct explanation of A

2.  Both A and R are true but R not correct explanation of A

3.  A is true,R is false

4.  A is false R is true

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4
Correct Answer :

Both A and R are true and R is correct explanation of A


Explanation :
No Explanation available for this question

Which electrolyte is more effective in causing coagulation of ferric hydroxide sol

1.  KBr

2.  K2SO4

3.  K2Cr2O4

4.  K4[Fe(CN)6 ]

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4
Correct Answer :

K4[Fe(CN)6 ]


Explanation :
No Explanation available for this question

PH of 10-8 M NaOH solution is

1.  6.96

2.  7.04

3.  8

4.  14

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4
Correct Answer :

7.04


Explanation :
No Explanation available for this question

Staggered conformation occurs in ethane at the dihedral angle of

1.  00, 1200, 2400

2.  900, 1800, 2400

3.  600, 1800, 3000

4.  900, 1800, 3000

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4
Correct Answer :

600, 1800, 3000


Explanation :
No Explanation available for this question

CH2=CH2+HCl→CH3CH2Cl is an example for

1.  Electrophilic addition reaction

2.  Nucleophilic addition reaction

3.  Free redical addition reaction

4.  Nucleophilic substitution reaction

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4
Correct Answer :

Electrophilic addition reaction


Explanation :
No Explanation available for this question

Optically active isomers but not mirror-images are called

1.  Enantiomers

2.  Mesomers

3.  Tautomers

4.  Diastereomers

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4
Correct Answer :

Diastereomers


Explanation :
No Explanation available for this question

X,Y,Z hydrocarbons molecular formula are CH4, C2H4, C2H2, these three are passed through porcelain tube containing ammonical cuprous chloride. The out coming gases would be

1.  X,Y

2.  Y,Z

3.  X,Z

4.  X,Y,Z

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4
Correct Answer :

X,Y


Explanation :
No Explanation available for this question

Acidic hydrogen is present in

1.  2-pentyne

2.  1-pentyne

3.  Benzene

4.  Ethane

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4
Correct Answer :

1-pentyne


Explanation :
No Explanation available for this question

Ethylene gives epoxy ethane on oxidation with

1.  KMnO4/OH-

2.  K2Cr2O7/H+

3.  Ag/2000C

4.  Alcohol

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4
Correct Answer :

Ag/2000C


Explanation :
No Explanation available for this question

In aromatization of n-hexane, the catalyst used is

1.  Cr2O3 only

2.  V2O only

3.  Mo2O3 only

4.  Any one among Cr2O3, V2O3 & Mo2O3

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4
Correct Answer :

Any one among Cr2O3, V2O3 & Mo2O3


Explanation :
No Explanation available for this question
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